4 ms·

Interestingly: $ telnet localhost ssh Trying ::1... Connected to localhost. Escape character is '^]'. SSH-2.0-OpenSSH_7.7 Obviously, it's just getti

Interestingly: $ telnet localhost ssh Trying ::1... Connected to localhost. Escape character is '^]'. SSH-2.0-OpenSSH_7.7 Obviously, it's just getting translated from ssh to 22 under-the-hood. I'm not sure who's doing the translation, though.

meowface 8y ago
This is often mapped by applications which read /etc/services for the information.
greatquux 8y ago
That should be defined in /etc/services. ~  grep ssh /etc/services ssh 22/tcp # SSH Remote Login Protocol And /etc/nsswitch.conf is configured to look at 'files' to see which ports map to which services.